Northstar rebuild: Will style (Page 92/119) USFiero JAN 30, 06:42 AM Hey Will, just bumping this to let you know I like to see how focused, detail oriented and committed you are to this project. Sure miss my Fiero(s). Will FEB 02, 07:30 PM Thanks! I'm really looking forward to getting this back on the road and terrorizing the public I'd been thinking for a while that if I went to a 58x sensor setup, I could use the forged crank from the supercharged 4.4 liter Northstar engine from the STS-V and XLR-V. I checked eBay and struck out. I called a bunch of junk yards that listed just the supercharger but not the engine and nada. Then I stumbled on the part number and checked it out. GM still listed it for about $400! So I ordered one. Forged crank and cast crank next to each other. I've turned the counterweights on the cast crank, so they're a little sharper than they would be stock. There are some differences in counterweight shape Got some good QC'ing done. All the oil holes look the same. It should just be a drop-in swap. *HOWEVER* the forged crank uses 11mm flywheel bolts instead of the 8mm bolts the normal Northstar uses. Maybe that's good because LS engines use 11mm bolts, so I can spec my flywheel such that I can make use of LS flywheel bolts. That doesn't help the flywheel for the normal engines, but that's the way things work out. Oh yeah, AND my flywheel that I just had prototyped needs to be reworked for this crank. AWESOME! Will FEB 02, 07:34 PM And I bought a Wilwood rotor to play with for a fit check. pmbrunelle FEB 03, 12:36 AM Conjecture: When casting molten metal, the melt can easily fill any sort of cavity shape. When forging, it is not as easy to squish the metal to fill an arbitrary shape, hence the counterweights appear to have smoother external surfaces. Have you thought about a floating attachment vs. normal bolts between the hat and rotor? What are your thoughts on this? Will FEB 03, 10:03 AM These particular rotors are $85 each; the ones with dynamic mounts are WAY more expensive. Also, the dynamic mounting rattles and makes noise. These rotors are 12 3/16 x 1 1/4... plenty big for a Fiero unless I happen to be *REALLY* fast around Summit Point. La fiera FEB 03, 03:21 PM quote Originally posted by Will: These particular rotors are $85 each; the ones with dynamic mounts are WAY more expensive. Also, the dynamic mounting rattles and makes noise. These rotors are 12 3/16 x 1 1/4... plenty big for a Fiero unless I happen to be *REALLY* fast around Summit Point. Summit Point Raceway in West Virginia?! Will FEB 03, 05:06 PM Yeah, it's 1-1.5 hours away. I live in the DC Metro area. La fiera FEB 03, 05:24 PM quote Originally posted by Will: Yeah, it's 1-1.5 hours away. I live in the DC Metro area. Oh ok! I'll be in Summit Point Main track March 7-8. Swing by! Will FEB 20, 09:02 AM Gotta see what my Navy schedule has... that's also a hike without my track car ready steve308 FEB 20, 04:20 PM Will. If you are in the DC area, look into Dominion Raceway which is just south of Fredericksburg VA. Traffic on 95 sucks but it's closer. They have a two mile road course, host club events and run a 'track attack' event that I think is similar to the FATT (Friday at the track) at summit. I use to run SCCA events years ago at the point (not is a FIERO). Come on out to a cars and coffee in northern VA. Would like to meet up. Steve